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/* Test checking user's permissions for a file.
Copyright (C) 2011-2023 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#include <unistd.h>
#include "signature.h"
SIGNATURE_CHECK (faccessat, int, (int, const char *, int, int));
#include <errno.h>
#include <fcntl.h>
#include "macros.h"
#define BASE "test-faccessat.t"
int
main (void)
{
/* Test behaviour for invalid file descriptors. */
{
errno = 0;
ASSERT (faccessat (-1, "foo", F_OK, 0) == -1);
ASSERT (errno == EBADF);
}
{
close (99);
errno = 0;
ASSERT (faccessat (99, "foo", F_OK, 0) == -1);
ASSERT (errno == EBADF);
}
/* Test behavior with trailing slash. */
unlink (BASE "file");
ASSERT (faccessat (AT_FDCWD, ".", X_OK, 0) == 0);
ASSERT (faccessat (AT_FDCWD, "./", X_OK, 0) == 0);
ASSERT (close (open (BASE "file", O_CREAT | O_WRONLY, 0)) == 0);
ASSERT (faccessat (AT_FDCWD, BASE "file", F_OK, 0) == 0);
ASSERT (faccessat (AT_FDCWD, BASE "file/", F_OK, 0) != 0);
unlink (BASE "link1");
if (symlink (".", BASE "link1") == 0)
{
ASSERT (faccessat (AT_FDCWD, BASE "link1", X_OK, 0) == 0);
ASSERT (faccessat (AT_FDCWD, BASE "link1/", X_OK, 0) == 0);
unlink (BASE "link2");
ASSERT (symlink (BASE "file", BASE "link2") == 0);
ASSERT (faccessat (AT_FDCWD, BASE "link2", F_OK, 0) == 0);
ASSERT (faccessat (AT_FDCWD, BASE "link2/", F_OK, 0) != 0);
unlink (BASE "link2");
unlink (BASE "link3");
ASSERT (symlink (BASE "no-such-file", BASE "link3") == 0);
ASSERT (faccessat (AT_FDCWD, BASE "link3", F_OK, 0) != 0);
ASSERT (faccessat (AT_FDCWD, BASE "link3/", F_OK, 0) != 0);
unlink (BASE "link3");
}
unlink (BASE "link1");
unlink (BASE "file");
return 0;
}
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